Improvement in lamp-fillers



JOHN. n. cnrswotn, 'oF enfonce, Inniuors.

Specification forming part of Letters Patent No. l 73,167, datedFebruary 8, 1876 application filed. h December 28, 187,5. 1

To all whom it may concern 1 Be it known that I, JOHN A. GRIswoLD, ofChicago, in the county of Cook and State of Illinois, have inventedcertain new and useful Improvements in Lamp-Fillers, of .whichimprovements the following is a full, clear, and4 exact description,which willA enable others skilledin the art to whichmy inventionapperta-ins to make and use the said improvements, reference being hadto the accompanying drawing, forming a part hereof, and in which- Figure1 is an elevation of a lamp-filler embodying my invention, and Fig. 2 avertical central section thereof.

Like letters of reference indicate like parts. In the drawing, Arepresents a can, adapted to contain either oil or other burninguidscommonly used forilluminating purposes. B is the filling-nozzle,whichmay be closed bya stopper, in the usual manner, as represented at ain Fig. l, and C is the pouring-spout. I) is an ordinary bail, by meansof which the can may be carried from place to place. E is a cylinder orpiston-chamber in the can. F isa pistou .arranged in the cylinder E, andGr is the piston-stem; The stem Gr passes through an opening in the topof the cylinder E, and also through a closefitting opening inthe top ofthe can A, as shown. G' is a knob or handle on the upper end of the stemG. The lower end of the stem G is provided with a collar or ange, b, and

' c c are disks of packing, supported by the collar b. d is a loose diskor presser arranged above the packing, and'H is a nut arranged above thepresser d. That part of 'the stem Gr which receives the'nut H isscrew-threaded a'distance considerably greater than that occupied by thenut, as shown. The nut His ,polygonal in form, andthe opening throughthe top of the cylinder E is correspondinglyr formed, and of such` asize as to receive and iit the nut H when the latter is drawn upwardinto it by the upward stroke of the piston. The top of the cylinder Ealso limits ythe upward stroke of the piston, and the contact of the'handle G with the can limits the down'wardpstroke. Iis a'tube,connecting the spout C with the lower part of .the cylinder E. p

J is a valve, opening inwardly into the lower 'end of the cylinder and Kis a flexible tube attached to the outer end of the spout C.

The operation ofthe parts now described is as follows: When the piston Fis drawn up the oil or burning-fluid in the can A vis thereby drawn intothe,f cylinder E, the valve J being opened by the suction and currentthusv produced. The Vfree end of the tube K may then be pinched for thepurpose of preventing thear from entering'through it at that time; butas a rule thiswill be found to be'unnecessary, for the upward stroke ofthe pistou will also .cause the liquid contents to enter the cylinder Ethrough the valve J, although air may enter through the tube K at thesaine' time. Infact, the liquid-would nditsllevel or-reach the samedepthwithin and without the cylinder E, although the piston be raised fslowly enough to cause no suction. The downward stroke of the pistonwill close the valve J and force the liquid below the piston out throughthe tube I, spout C, and tube K. This flow will continuevv solong as thedownward movement of the piston is i continued, and, when the lower endof the tube K is held at a point below the bottom ofthe can, the flowwill continue after thc downward movement of Athe pistou has ceased, forthe tube K then operates as a Siphon,l and will drain away all' thecontents of thecan, or as much as may be desired. By raising the tube Kabove the `spout C, and lifting the piston slightly, the

liquid will run from the said tube into the cylinder E, and thus preventany drippings from the tube. f

In order to tighten or loosen the packing,

as occasion may require, I drawj thev piston upward until the nut Henters the socket or opening in the top of the cylinder, and thenl turnthe pistou-stem in such a direction as to either press'or release thepacking, thus making it run tighter or looser against the cylinder. Thisoperation, as will be perceived, may be performed without removing anyof the parts for thatV purpose, and when the can is closed it will alsobe perceived that the cau need not loe tipped during the operation oflling lamps, and that the contents of the can may be withdrawn withfacility and without spilling the oil or fluid, thereby rendering th canor ller safe-for use at all times.

Having thus described my invention, whatI I claim as new, and desire tosecure by Letl. The combination of the can A, interior cylinder E, valveJ, eduction I, stem G, support b, packing c, adjustable nut H, and thecorresponding socket or opening in the top of the cylinder,substantially' as and for the purposes specified.

2. The combination of the' can A, cylinder E,`va1ve J, eduction I, exbletube K, and apiston arranged within the said cylinder, and

having a ,stem extending through the can,

N. U. GRIDLEY, F. F. WARNER.

